trouble with calendar days and printing

musicmancanora4's Avatar
Go4Expert Member
Hey guys sorry for posting the whole code again..
How i can get my calenda program working from here? Because its not printing anything its only printing the mon tu wed etc but not the days of the month 1 - 31 and im not sure if its worked out correctly where the month starts?

Someone plz help me?



Code:
 
   int main(void)
{
   unsigned  month;
   unsigned  year;
   unsigned long days = 0;
   int i;
   int *keeptrack;
   int daysOfMonth[MAX_MONTH] ={31,28,31,30,31,30,31,31,30,31,30,31};
   
   /* that prints array
   for(i=0; i<MAX_MONTH; i++)
   {
   printf("days array:%d\n", daysOfMonth[MAX_MONTH]);
   }*/
   
   month = getMonth();
   year  = getYear();
  
  
   if(isLeapYear(year))
   {
      
      daysOfMonth[1] = 29;  /* change feb to 29 days*/
      
   }
   
   displayCalendar(month, year, daysOfMonth, keeptrack);
   
   return EXIT_SUCCESS;
}


/***********************************track,*****************************************
* Function getMonth() prompt the user for a number MIN_MONTH to MAX_MONTH and
* returns that number. The number 0 is valid because this indicates that the
* user wants to select all months.
****************************************************************************/
unsigned getMonth()
{
   
   /*** declare variables*/
  
  
  char *prompt = "Please enter a month between 0 - 12 !\n";
  char *month;
  int valMonth;
  int monthValid;
  
  do
  {
  monthValid = TRUE;
  month = getUserInput(prompt);
  
  valMonth = strtod(month,NULL);
  monthValid = validateMonth(valMonth);
  }
  while(!monthValid);
  
  
  /*printf("hello %s",month)void ;*/
  /*printf("Please enter a month between 0 - 12\n");*/

 
  /* validation check if month entered is less then 0 > 12*/ 
 
  
  /*doint arr[] = {1,2,3};
  {
        fgets(buff, BUFF_SIZE, stdin);
	
        
	*month = atoi(buff); 
       
	while(flag == 1 || *month <0 || *month >12)
	{
	   flag = 0;
	   
	   printf("Wrong input for month from 0 - 12 only!\n");
	   printf("Please enter a month between 0 - 12\n");
	   
	   MAX_MONTHfgets(buff, BUFF_SIZE, stdin);
	   *month = atoi(buff); month = getUserInput(prompt, result);
  tmpMonth = validateMonth(vvoid alMonth, prompt, result);
	
	}
   
	month
       
	
	   MAX_MONTH                 
	
       
   }
   while(flag != 0 );
          */
  /* printf(" value of month is:%d", valMonth) ;    */
   
   return valMonth;

}


/****************************************************************************
* Function MAX_MONTHgetYear() prompts the user for a number MIN_YEAR to MAX_YEAR and
* returns that number.
****************************************************************************/
unsigned getYear(char *month)
{
   char *prompt = "Please enter the year\n";
   char *year;
   int valYear;
   int yearValid;
   
   do
   {
     year = getUserInput(prompt);
     valYear = strtod(year,NULL);
     yearValid = validateYear(valYear);
     
   }
   while(!yearValid);
   
   return valYear;
}


/****************************************************************************
* Function displayCalendar() displays the calendar for the user.
* The function will display the calendar for a whole month.
* If the user supplied a month of "0", then a calendar for a whole year
* is displayed instead each month displayed under the previous one (you
* don't need to try to display months side by side).
* Give attention to getting the output format exactly as shown below
* (including headings and avoid lignment). Here's an example for March 2006:
* --------------------
*      March 2006
*  S  M Tu  W Th  F  S
*           1  2  3  4
*  5  6  7  8  9 10 11
* 12 13 14 15 16 17 18
* 19 20 21 22 23 24 25
* 26 27 28 29 30 31
* 
****************************************************************************/
void displayCalendar(unsigned month, unsigned year, int ar[], int *track)
{
   /* function called totalDays();*/
   /* total days % 7 finds out how many spaces for each month*/
   /* figure out when to prvoid int a new line*/
   
   int i;
   int dt;
   int loop;
   int t;
   t=*track;
   
   totalDays(month, year, ar, t);
   
   printf("\n\n\n\n\t\t");
   printf("S  M  Tu W  Th  F  S\n");
   printf("%d", t);
  for(loop=0; loop<t+2; loop++)
  {
      printf("\t");
      for(dt=1; dt<=month; dt++)
  {
      
     
      if(t%7==0 && t!=0)
      {
         printf("\n\n\t\t");
	 printf("%d\t", dt);
	 t++;
      }
  
  }
  
  
  }
   
   
   
   
   
}


/****************************************************************************
* Function readRestOfLine() is used for buffer clearing. Source: 
* https://inside.cs.rmit.edu.atrack,u/~sdb/teaching/C-Prog/CourseDocuments/
* FrequentlyAskedQuestions/
***************************void *************************************************/
void readRestOfLine()
{
   int c;

   /* Read until the end of the line or end-of-file. */   
   while ((c = fgetc(stdin)) != '\n' && c != EOF);

   /* Clear the error and end-of-file flags. */
   clearerr(stdin);
}

char* getUserInput(char *prompt)
{
   char *result;
   char buff[BUFF_SIZE];
   
   printf(prompt);
   
   result = fgets(buff, BUFF_SIZE, stdin);
   
   
    if(result == NULL)
    {
       
        printf("Error please enter the input again!\n");
   
    }
    else if(result[strlen(result)-1] != '\n')
    {
        readRestOfLine();
    }
    
  
    return result;
   
   
}

int validateMonth(unsigned  month)
{
   
     if(month<0 || month>12) /* flag 1 for true*/
     {
	
        printf("Month error 0 or less or equal to 12 please\n");
	return FALSE;
     }
     
     return TRUE;
     
     /*return 1;*/
}

int validateYear(unsigned year)
{
   
   if(year<0 || year>3000)
   {
      printf("between 0 - 3000 only!!\n");
      return FALSE;
   }
   
   return TRUE;
}


int isLeapYear(unsigned year)
{
   /* year = 2006; test for leap year*/
   if((year%400 == 0)|| ( year%4==0 && year % 100 != 0))
   {
      printf("leap year\n");
      return TRUE; 
   }
   else
   {
      return FALSE;
   }
  /* return year;*/
}

void totalDays(unsigned month, unsigned year, int ar[], int track)
{
   int i;
   int md = 0;
   int leap=0;
   int startYear = 1900;
   
   unsigned d;
   unsigned yrd;  
   
   for(i=startYear; i<year; i++)
   {
      if((i%4==0)&&((i%100!=0)||(i%400==0)))
      {
         leap++;
      }
   
   }
   
   for(i=0; i<(month-1)&&(i<11); i++)
   {
      md = md+ar[i];
      yrd=(year-startYear)*365;
      d = yrd+leap+md;
      track=d%7;
   }
   
  /*printf("Month day:%d.yearDay1900:%d... 
   day:%d..track%d", md, yrd,d,track);*/


}
coderzone's Avatar, Join Date: Jul 2004
Team Leader
The problem is your strtod function return 0 and so all the values are being lost. Use atoi instead of that as that can help you towards success.